Plugins: Add metrics for fs + cloud provisioning info (#111030)

* add new metrics for plugin fs + cloud provisioning

* fix test

* update label

pkg/plugins/localfiles.go

@@ -30,6 +30,10 @@ func NewLocalFS(basePath string) LocalFS {
 	return LocalFS{basePath: basePath}
 }
 
+func (f LocalFS) Type() string {
+	return "local"
+}
+
 // fileIsAllowed takes an absolute path to a file and an os.FileInfo for that file, and it checks if access to that
 // file is allowed or not. Access to a file is allowed if the file is in the FS's Base() directory, and if it's a
 // symbolic link it should not end up outside the plugin's directory.
@@ -215,6 +219,10 @@ func NewStaticFS(fs FS) (StaticFS, error) {
 	}, nil
 }
 
+func (f StaticFS) Type() string {
+	return f.FS.Type()
+}
+
 // Open checks that name is an allowed file and, if so, it returns a fs.File to access it, by calling the
 // underlying FS' Open() method.
 // If access is denied, the function returns ErrFileNotExist.